Table 1

 Diagnostic value of anti-CCP and rheumatoid factor for RA

ReferencePatients with RAHealthy subjectsOther rheumatic diseases
NoAge (years)DD (years)NoNoSensitivitySpecificity
DD, disease duration; RA, rheumatoid arthritis; RF, rheumatoid factor.
Unless otherwise mentioned, results are presented as mean (SD), median (range).
Anti-CCP121, 53–65223455 (7)1.5 (1)324146553 (10)96 (3)
54 (46–65)1 (0.3–3)54 (41–68)97 (90–99)
Anti-CCP28–52612555 (5)5 (4.5)1561464668 (15)95 (5)
55 (46–66)4 (0.2–14.5)68.5 (39–94)97 (81–100)
RF8–65820655.5 (6)4 (4)1865579760 (18)79 (15)
55.5 (46–66)2 (0.2–15)65 (25–95)81 (31–95)